12
Indoor unit 1
P
Q
E
X1
X2
X1
X2
X1
X2
Figure 6.7
Indoor unit 1
Indoor unit 2
P Q E
X1 X2
P Q E
X1 X2
D1
D2
P Q E
X1 X2
X2
X1
D2
D1
X2
X1
D2
D1
Indoor unit 1
Display board
A
B
C
D
A
B
C
D
6.4 Handling the Electrical Wiring Connection Points
Figure 6.10
0
1
2
3
4
5
6
Caution
•
The capacity DIP switches have been configured before delivery.
Only a professional maintenance personnel should change these settings.
DIP Switch Code
Capacity
Indoor unit n(n<=16)
For the specific connection method, refer to the instructions in the
Caution
•
XP4 XS4
P
Q
E
X1
X2
Yellow
Grey
White
Blue
Black
Display board
CN17
CN9
CN15
Main control panel
ENC1
POWER_S
To outdoor/
indoor units
COMM. BUS
D1
D2
D1
D2
D1
D2
D1
D2
D1
D2
1000W/1200W
1500W/1700W/1800W
2200W
4000W
4500W
2500W/2800W
3200W/3600W
7
8
5000W/5600W
6300W/7100W
9
8000W
Primary wired control
Secondary wired control
Primary wired control
Secondary wired control
Wired control 2
Wired control 1
Wired control 2
Wired control 1
Wired control 1
Figure 6.9
The
X1/X2,
D1/D2
ports
on
the
sides
of
the
main
control
board
and
the
unidirectional
communication
port
(display
board
side)
are
for
different
types of wired controls (see Figure 6.10).
Use the connecting wires (accessories) to connect the D1/D2 terminals.
To wired
control
COMM. BUS
To wired
control
COMM. BUS
D2 D1
corresponding
wired
control
manual
to
carry
out
the
wiring
and
connections.
Once
the
wiring
and
connections
are
done,
use cable
ties
to secure
the wiring
properly
so
that
the
connection
joint
cannot be
pulled
apart
by
external
forces.
The
connection
wiring
must
be straight
out
so
that
the
electrical box cover is leveled and can be closed tightly.
Use
professional
insulation
and
sealing
material
to
seal
and
protect
the
perforated
wires.
Poor
sealing
may
lead
to
condensation
and
entry
of
small
animals
and
insects
that
may
cause
short
circuits
in
parts
of
the
electrical
system, causing the system to fail.
7.2
Address Settings
When a indoor unit is connected to the outdoor unit, the outdoor unit will
automatically allocate an address for the indoor unit.
Alternatively, you may use the control to manually set the address.
The addresses of any two indoor units in the same system cannot
be the same.
The network address and the indoor unit address are the same, and does
not have to be configured separately.
Once the address settings are completed, mark the address of each indoor
unit to facilitate after-sales maintenance.
The centralized indoor unit control is completed on the outdoor unit.
For details, refer to the manual on the outdoor unit.
Caution
•
After completing
the
centralized
control
function
of
the
indoor
unit
has
been
on
the
outdoor
unit,
the
DIP
switch
on the
main
control
panel
of the
outdoor
unit
must
be
set
to
auto
addressing;
otherwise,
the
indoor unit in the system will not be controlled by the centralized control.
•
The
system
can
connect
up
to
64
indoor
units
(address
0~63)
at
the
same
time.
Each
indoor
unit
can
only
have
one
address
DIP
switch
in
the
system.
The
addresses
of
any
two
indoor
units
in
the
same
system
cannot
be
the
same.
Units with
the
same
address
may
malfunction.
7.
DIP Switch Configuration
7.1
Capacity Settings
Set
up
the
PCB
DIP
switch
on
the
indoor
electric
control
box
to
cater
to
different
uses.
Once
the
settings
are
done,
make
sure
you
cut
off
the
main
power
switch
again,
and
then
switch
the
power
on.
If
the
power
is
not
cut
off
and
switched
on
again, the settings will not be executed.
POWER_S
ENC1
ENC1 DIP
Switch Capacity Settings:
Figure 6.8
2) For a unidirectional communication mode:
Use 1 wired control to control 1 indoor unit (see Figure 6.9).
